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W. P. VALENTINE.

MECHANICAL MOVEMENT.

No. 328,090. Patented Oct. 13, 1885.

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TINITED STATES PATENT OFFICE.

WILLIAM B. VALENTINE, OF PAINESVILLE, OHIO, ASSIGNOE OF THREE- FOUETHS TO E. G. WETHERBEE, M. J. WVILSON, AND W. G. REED.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 328,090, dated October 13, 1885.

Application filed April 23, 1884. Renewed September 15, 1885. Serial No. 177,207. (No model.)

To all whom it may concern.-

Be it known that I, WVILLIAM P. VALEN- TINE, of Painesville, in the county of Lake and State of Ohio, have invented certain Improvements in Mechanical Movements, of which the following is a specification.

The aim of my invention is to provide a device whereby a single reciprocation of one part will be caused to produce a double reciprocation of another part.

To this end it consists, essentially, in combining with a rotating member provided with a crank-arm and pitman a reciprocating driving device united thereto by straps or other flexible connections, as hereinafter explained.

Referring to the accompanying drawings, Figure 1 represents a perspective view of my improved device. Figs. 2, 3, and 4 are diagrams illustrating the action of the device.

Referring to the drawings, A represents a reciprocating bar, which constitutes the prime mover, and which may receive its reciprocating motion from any suitable source, and through driving devices of any suitable char- It may be connected, as in Fig. 1, by means of a pitman, B, to a driving-crank, O, or it may be attached directly to the drivingcrank, as shown in Fig. 2, or slotted at one end to receive an actuating-crank, as represented in Fig. 3, the only requirement being that it shall have a to-and-fro motion.

D represents a pivoted rolling block, which is connected with the reciprocating bar by means of two flexible straps, metallic ribbons,

- or other flexible connections, E, which are attached to opposite sides of the block, passed thereunder from opposite directions, and secured at their extremities to the bar A, as shown, so that as the bar is moved to and fro the winding and unwinding of the straps will impart a rotary vibration to the block B. This rotation may be imparted to a greater or less extent, as circumstances may require; but I prefer, under ordinary circumstances, to proportion the parts in such manner as to give about a half-revolution to the block.

I provide the rotary block B with a crankarm, G, extending rigidly therefrom, and to this arm attach a pitman, H, which is connected at its opposite extremity to a recipro cating member, I, which may consist of a bar, a sliding block, or any other device to which motion may require to be imparted. The reciprocation of the member I is in a direction at right angles to the movement of the bar A.

The operation of the parts is as follows: As the barA is moved in one direction the straps cause the block G to turn for a half-revolution, throwing its crank-arm H from a horizontal position on one side downward and upward to a like position on the opposite side, the effect being to cause the pitman to move the block I downward and then upward, the part I thus receiving a double reciprocation, or, in other words, a toand-fro motion from the movement of the bar A in one direction. The return movement of the bar A, reversing the motion of the rotary block B, has the effect of again lowering and raising the part I.

From the foregoing it will be perceived that the part I receives twice as many reciprocations as the driving-bar A.

The details of the mechanism may be modifled to adapt it for application to different classes of machinery and under different circumstances.

It will be observed that the rotary head is made of a substantially semicircular form, its weight being mainly on one side of the axis. This is advantageous in that the gravity of the weight aids in arresting the motion of the parts at the end of the stroke, and also aids in starting them again in the reverse direction, so that they may be driven easily and quietly at high speeds.

Having thus described my invention, what I claim is 1. The combination of the reciprocating bar, the rotary block provided with a crankarm, the flexible connection between said bar and arm, the pitman H, and the reciprocating device I, whereby a single reciprocation of the bar A is caused to impart a double reciprocation to the part I.

2. In a mechanism for multiplying reciprocating motions, a reciprocating drivingbar, A, and a reciprocating driven bar, I, in combination with the intermediate rocking sector, D, its crank, the pitman connecting said crank to the driven bar, and means, substantially as shown, connecting the rocking sector with the in opposite directions past each other and atdriving-bar, whereby a single reciprocation tached at their ends to the driving-bar A, sub- [0 of A produces two reciproeations of B. stantially as shown.

3. The two bars A and I arranged to reeiprocate in right lines at right angles to each WILLIAM VALENTINE other, in combination with the intermediate Witnesses: crank and pitman, the rotary sector-block D, P. T. DODGE, and the two straps passing around. the sector HARRY SHIPLEY. 

